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Message: #10015

[EP-tech] Server nightmare

To: "eprints-tech@ecs.soton.ac.uk" <eprints-tech@ecs.soton.ac.uk>
Subject: [EP-tech] Server nightmare
From: Will Hughes <w.p.hughes@reading.ac.uk>
Date: Wed, 5 Mar 2025 22:49:24 +0000

CAUTION: This e-mail originated outside the University of Southampton.

In the process of working through my configuration, something has gone severely wrong. When I execute the commend:

sudo -u eprints /opt/eprints3/bin/generate_views ARCHIVEID

The server goes crazy and gets stuck generating thousands of error messages, CPU whacks up to 100%, runs out of memory, and I can barely get it back under control. I have to kill processes, etc. Below are some of the messages from the error log after I stopped systemctl. Is this an Eprints problem or a Server problem?

Best wishes

Will

Will Hughes

Emeritus Professor of Construction Management and Economics

School of the Built Environment

University of Reading, PO Box 219, Whiteknights

Reading, RG6 6DF, UK

Last login: Wed Mar 5 15:41:38 2025 from 162.243.190.66

root@ubuntu-s-1vcpu-1gb-lon1-01:~# cd /var/log/apache2/

root@ubuntu-s-1vcpu-1gb-lon1-01:/var/log/apache2# tail -n 100 error.log

[Wed Mar 05 15:35:55.279733 2025] [perl:error] [pid 384245:tid 384251] [client 165.227.173.50:11611] EPrints::abort()\n

/opt/eprints3/archives/arcom/var/last_changed.timestamp has been modified since the repository config was loaded: reloading!

DBI connect('database=arcom;host=localhost;mysql_enable_utf8=1','arcom',...) failed: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) at /usr/lib/x86_64-linux-gnu/perl5/5.38/DBI.pm line 693.

DBI::__ANON__(undef, undef) called at /usr/lib/x86_64-linux-gnu/perl5/5.38/DBI.pm line 748

DBI::connect("DBI", "DBI:mysql:database=arcom;host=localhost;mysql_enable_utf8=1", "arcom", "KfjkO3TxnX00aJkd", HASH(0x58f5e2255e08)) called at /usr/lib/x86_64-linux-gnu/perl5/5.38/DBI.pm line 587

DBI::connect_cached("DBI", "DBI:mysql:database=arcom;host=localhost;mysql_enable_utf8=1", "arcom", "KfjkO3TxnX00aJkd", HASH(0x58f5d89505b0)) called at /opt/eprints3/perl_lib/EPrints/Database.pm line 314

EPrints::Database::connect(EPrints::Database::mysql=HASH(0x58f5e2266770)) called at /opt/eprints3/perl_lib/EPrints/Database/mysql.pm line 270

EPrints::Database::mysql::connect(EPrints::Database::mysql=HASH(0x58f5e2266770)) called at /opt/eprints3/perl_lib/EPrints/Database.pm line 193

EPrints::Database::new("EPrints::Database", EPrints::Repository=HASH(0x58f5d6798098)) called at /opt/eprints3/perl_lib/EPrints/Repository.pm line 5897

EPrints::Repository::init_from_request(EPrints::Repository=HASH(0x58f5d6798098), Apache2::RequestRec=SCALAR(0x58f5e260a8e8)) called at /opt/eprints3/perl_lib/EPrints.pm line 420

EPrints::init_from_request(EPrints=HASH(0x58f5d6798038), Apache2::RequestRec=SCALAR(0x58f5e260a8e8)) called at /opt/eprints3/perl_lib/EPrints/Apache/Rewrite.pm line 70

EPrints::Apache::Rewrite::handler(Apache2::RequestRec=SCALAR(0x58f5e260a8e8)) called at -e line 0

eval {...} called at -e line 0